Fabrication and characterisation of hollow composite iron oxide/silica microparticles with porous shell

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F11%3A43892122" target="_blank" >RIV/60461373:22340/11:43892122 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fabrication and characterisation of hollow composite iron oxide/silica microparticles with porous shell

Popis výsledku v původním jazyce

Our aim is to prepare hollow composite iron oxide/silica microparticles in the size range tens of micrometers. Microparticles had porous silica (SiO2) shells in which were dispersed nanoparticles of superparamagnetic iron oxide (Fe2O3/Fe3O4). Such prepared microparticles can be applied for targeted delivery systems for field of applications as cleaning substances. We prepared the composite microparticles via soft shell templating route. As a silica source is used tetraethyl orthosilicate and as the templates the droplets of octylamine. The method has good reproducibility, is fast and very simple. The resulting particles were studied and characterized in size, shape and ability to heat up. We have shown that particle size can be systametically varied inthe range of 20-100 ?m and that composite microparticles were able to heat up in the presence of an external magnetic field in the radiofrequency range (400 kHz). Our results show that the fabrication of composite iron oxide/silica micro

Název v anglickém jazyce

Fabrication and characterisation of hollow composite iron oxide/silica microparticles with porous shell

Popis výsledku anglicky

Our aim is to prepare hollow composite iron oxide/silica microparticles in the size range tens of micrometers. Microparticles had porous silica (SiO2) shells in which were dispersed nanoparticles of superparamagnetic iron oxide (Fe2O3/Fe3O4). Such prepared microparticles can be applied for targeted delivery systems for field of applications as cleaning substances. We prepared the composite microparticles via soft shell templating route. As a silica source is used tetraethyl orthosilicate and as the templates the droplets of octylamine. The method has good reproducibility, is fast and very simple. The resulting particles were studied and characterized in size, shape and ability to heat up. We have shown that particle size can be systametically varied inthe range of 20-100 ?m and that composite microparticles were able to heat up in the presence of an external magnetic field in the radiofrequency range (400 kHz). Our results show that the fabrication of composite iron oxide/silica micro

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GD104%2F08%2FH055" target="_blank" >GD104/08/H055: Transportní a reakční procesy v komplexních vícefázových systémech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Workshop Reakční a transportní jevy V

ISBN

978-80-7080-797-2

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

144-150

Název nakladatele

VŠCHT Praha

Místo vydání

Praha

Místo konání akce

Roztoky u Křivoklátu

Datum konání akce

8. 6. 2011

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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